Coffee-urn.



PATEN TBD NOV. l9 1907.

W. J. WILLIAMS.

GOFFEE URN.

APPLIGAIION nun 1mm, um.

PATENT OFFICE.

WALTER J. WILLIAMS, OF NEW YORK, N. Y.

1 Bpecification o1 I.etters Patent.

Pntenfed Nov. 19, 1907.

.lpgliolticn filad Iiobmuy 9 190'L Borlll He. 856.620.

"T all whom it may concernf -:Be it known thut I, WALTER J. WILLIAMS,

- afcitizen of the Unitedtates of America residing at the borou h of Brooklyn, cioy of New York, Stute of ew York, have inveuted 2.'new und Improved Cofiee-Urn, of which t he following is a speoification.

This invention 'relates more especially to m'ziintenance. of the water supply to the main um jacket or heiler from whioh bot Water isdischarged into a percolator deliver- 'ingliquid 01 d.rip coir'ee mto a subjacem'; crock or reserv'oir frorn which it is dra.wn for use.

The principal object: of the invention is to -provide f01 automatic s up ly or f eed of water to the urn- 'aoket or boi er after hob water Passes there 0m t-o the drip coffeepercolator,

whereby a. siugle um struoture is runde quite 'tns effective in use as a triple-uru compnsing a. central um (und two op 0site side uns 'taking hot water alternate y from the coutml um for m aintaining supply of liquid cofi'ee.

- A triploaxm ap aratus is expansive und rquires conside'rallle labor to xuaintain the wa.ter supply by the usual hE1I1d-feedin and tb frequently olean and othe rwise care for the three ums, whioh also require considemble gas 0x o'ther fuel to operate them.

. By th'm simple invention handieeding of water to an um heiler is m ade unnecessary 1thus entirely avoiding tl1e usuel splashing of t he feed water und obviating frequo;.t cleanin of the apparatus. B11rniug out of the used.

' bo1ler bottom also is prevented, a.nd the'volume oi amountof heating fu9l is reduced to a miuimum, while the cofl'ee-making cnpacity of a single um isincreased to an exteut making a tri}g le-urn ur mecessary in very many plwces w ere apparatus 0f tln's-oharact er is The invention comprises wuter supply coutl'0lling mechuni sm includim: a float located in the main jacl et o1 water Eoilerof the um und means comxeeting the float-to a valve fi tted in a constantly counected maiu wuter sgiiply pi e rvhereby, after a valve in the per c ator c arging pipe is opened to allow hol;

unter to flow fromthe bmler to and through the' percolator for xnuking a ohmge of liquid oofiee, the maiu wuter supply valve is opened by fall of the flout with tho lowering water lovel in the boiler to automaticully admit wa.tor to the l oik=r to compensate for the hot water so drawn ofl' 1.o tbo percolator.

The invention also inoludes eertain dotails of construction of the automatio water sup ply controlling mechanism, und of the sanitaty um, a l as hereinafter described und particula.rly oiuted out; in the appeuded. clauns.

Re erence is runde t0 the accum anying d.rawings forming purt of this speci cation, and in whioh Figuxe 1 is s. vertioal seotion ol" the imercolator, und of otl1er arts of the.

groved um taken on the line a-a in Figz. 3.

hig. 2 is a, vertical sectionul view hake-u 011 Lhc line bb in Fig. 3, wit'n the jncketed liquid coffee reservoir partly broken a.way to snow the boiler f@ed valve 0 emting mechanism. Fig. 3 is a plan view of t .e um with its cover und drip coflee ercolator removed. Fig. 4 is an eulawed etuil elevation of the mein water su'pply valve ar.d part of the flout und the geanng cont-rolling the valve froru tb.e Fig. 5 is a detail vertical section taken on the Iine cc in Fi s. 3 und 4; and Fig. 6 is au enlor ed detai sectional lau view showing the ocking connectiou o the two-part remuvable oercolator with the bot; wat-er disoharge nozzle.

The numeral 1 indicates tha main outside um jacket or boiler ha.ving a bott-om 2, und sustained by legs 3 ab suitzable height to allow a gas or.s irit lamp 01 other heater to be a.rranged uu er the boiler for heating lahe water supplied to it throi1gh the no2zle 4 of a feed pipe 5. Thls pipe 15 zonnected by a uniou 6 with a pipe 7 leadiog to a street main o1" tank 01' other souroe of constaut water supply. At the top of the water jacket 1 there is a rim 8 to which is soldered the. fla.uged upper end of an iuner open-topped jacket 9 in which is placed the liquid cofl'ee crock o1 reservoir 10. The .part-s 9, 10 nre spaced agart to provide betweeu tl\em an zur cham er 11 preventing excessive cooling ox heating of the liquid cofl'ee in t-he reservoir. piye coupliug 12 Es held to the parts 9, 10, b an inner hollow screw plu 13 ente ring tlxe couplixw 12, suitable waslxers 14, 14, heilig preferabl Y interposed at shoulders of said parts 12, 13, to assure fluid t-ighb joints preventing leukage 0f co1'l'oo from the reservoir 10 to the boiler 1, und also prevent iug passage of water from the boiler t0 the reservoir at these bottom connections. T0 the coupling 12 are fnstoned the iunur emls of two pioes 15, 16 wlxich are ruspectively conneete Jtoafcofiee'drawing aucut 1T, und 

